4 ms·
Again, heavy rain, smog and a couple of good sized trees 2.4GHz requires line of sight and has major problems with water and trees. 900 MHz is much more forgi
by chopsueyar 15y ago
Again, heavy rain, smog and a couple of good sized trees
2.4GHz requires line of sight and has major problems with water and trees.
900 MHz is much more forgiving.
- kragen 15y agoYeah, but we're only talking about <4km here. Rain fade in the 2.4GHz band could produce up to 2dB of attenuation under flash-flood-thunderstorm conditions. 2dB is not a big deal! At 10km or 20km or 40km you might have a point.
- chopsueyar 15y agoSo, 2.4GHz can transmit through trees?
- kragen 15y agoIt depends. It doesn't penetrate very far into the trunk, but it doesn't have that much trouble with leaves and twigs. (Until they get rained on.) So you can have a line of sight that's pretty much blocked by trees visually, but quite clear in 2.4GHz.
- chopsueyar 15y agoSo, if it is raining and the tree gets wet, it will not transmit through the tree, correct?
- kragen 15y agoIt's not that simple. Attenuation increases when it rains and the tree gets wet, but whether the attenuation is enough to cut off your connection entirely depends on a lot of things. But sometimes, yes.
- chopsueyar 15y agoWell, this was some useful discourse.